<template>
  <div class="container">
    <div class="app-container">
      <div class="role-operate">
        <el-button size="mini" type="primary" @click="showDialog = true">
          添加角色
        </el-button>
      </div>
      <el-table :data="list">
        <el-table-column prop="name" align="center" width="200" label="角色">
          <template v-slot="{ row }">
            <el-input
              v-if="row.isEdit"
              v-model="row.editRow.name"
              size="mini"
            />
            <span v-else>{{ row.name }}</span>
          </template>
        </el-table-column>
        <el-table-column prop="state" align="center" width="200" label="启用">
          <template v-slot="{ row }">
            <el-switch
              v-if="row.isEdit"
              v-model="row.editRow.state"
              :active-value="1"
              :inactive-value="0"
            />
            <span v-else>
              {{
                row.state === 1 ? '已启用' : row.state === 0 ? '未启用' : '无'
              }}
            </span>
          </template>
        </el-table-column>
        <el-table-column prop="description" align="center" label="描述">
          <template v-slot="{ row }">
            <el-input
              v-if="row.isEdit"
              v-model="row.editRow.description"
              type="textarea"
              size="mini"
            />
            <span v-else>{{ row.description }}</span>
          </template>
        </el-table-column>
        <el-table-column align="center" label="操作">
          <template v-slot="{ row }">
            <template v-if="row.isEdit">
              <el-button type="primary" size="mini" @click="btnEditOK(row)">
                确定
              </el-button>
              <el-button size="mini" @click="row.isEdit = false">
                取消
              </el-button>
            </template>
            <template v-else>
              <el-button size="mini" type="text" @click="btnPermission(row.id)">
                分配权限
              </el-button>
              <el-button size="mini" type="text" @click="btnEditRow(row)">
                编辑
              </el-button>
              <el-popconfirm
                title="确定删除吗？"
                @onConfirm="confirmDel(row.id)"
              >
                <el-button
                  slot="reference"
                  style="margin-left: 10px"
                  size="mini"
                  type="text"
                >
                  删除
                </el-button>
              </el-popconfirm>
            </template>
          </template>
        </el-table-column>
      </el-table>
      <el-row type="flex" justify="end" align="middle" style="height: 60px">
        <el-pagination
          :page-size="pageParams.pagesize"
          :current-page="pageParams.page"
          :total="pageParams.total"
          layout="prev, pager, next"
          @current-change="changePage"
        />
      </el-row>
    </div>
    <el-dialog
      width="500px"
      title="新增角色"
      :visible.sync="showDialog"
      @close="btnCancel"
    >
      <el-form
        ref="roleForm"
        :model="roleForm"
        :rules="rules"
        label-width="120px"
      >
        <el-form-item prop="name" label="角色名称">
          <el-input v-model="roleForm.name" size="mini" style="width: 300px" />
        </el-form-item>
        <el-form-item prop="state" label="启用">
          <el-switch
            v-model="roleForm.state"
            size="mini"
            :active-value="1"
            :inactive-value="0"
          />
        </el-form-item>
        <el-form-item prop="description" label="角色描述">
          <el-input
            v-model="roleForm.description"
            type="textarea"
            :rows="3"
            size="mini"
            style="width: 300px"
          />
        </el-form-item>
        <el-form-item>
          <el-row type="flex" justify="center">
            <el-col :span="12">
              <el-button type="primary" size="mini" @click="btnOK">
                确定
              </el-button>
              <el-button size="mini" @click="btnCancel">取消</el-button>
            </el-col>
          </el-row>
        </el-form-item>
      </el-form>
    </el-dialog>
    <el-dialog :visible.sync="showPermissionDialog" title="分配权限">
      <el-tree
        ref="permTree"
        node-key="id"
        :data="permissionData"
        :props="{ label: 'name' }"
        show-checkbox
        default-expand-all
        :default-checked-keys="permIds"
        check-strictly
      />
      <el-row slot="footer" type="flex" justify="center">
        <el-col :span="6">
          <el-button type="primary" size="mini" @click="btnPermissionOK">
            确定
          </el-button>
          <el-button size="mini" @click="showPermissionDialog = false">
            取消
          </el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script>
import {
  getRoleList,
  addRole,
  updateRole,
  delRole,
  getRoleDetail,
  assignPrem
} from '@/api/role'
import { getPermissionList } from '@/api/permission'
import { transListToTreeData } from '@/utils'
export default {
  name: 'Role',
  data() {
    return {
      showDialog: false,
      list: [],
      pageParams: {
        page: 1,
        pagesize: 10,
        total: 0
      },
      roleForm: {
        name: '',
        state: 0,
        description: ''
      },
      rules: {
        name: [
          { required: true, message: '角色名称不能为空', trigger: 'blur' }
        ],
        description: [
          { required: true, message: '角色描述不能为空', trigger: 'blur' }
        ]
      },
      showPermissionDialog: false,
      permissionData: [],
      currentRoleId: null,
      permIds: []
    }
  },
  created() {
    this.getRoleList()
  },
  methods: {
    async getRoleList() {
      const { rows, total } = await getRoleList(this.pageParams)
      this.list = rows
      this.pageParams.total = total
      this.list.forEach((item) => {
        this.$set(item, 'isEdit', false)
        this.$set(item, 'editRow', {
          name: item.name,
          state: item.state,
          description: item.description
        })
      })
    },
    changePage(newPage) {
      this.pageParams.page = newPage
      this.getRoleList()
    },
    btnOK() {
      this.$refs.roleForm.validate(async (isOK) => {
        if (isOK) {
          await addRole(this.roleForm)
          this.$message.success('新增角色成功')
          this.btnCancel()
          this.getRoleList()
        }
      })
    },
    btnCancel() {
      this.$refs.roleForm.resetFields()
      this.showDialog = false
    },
    btnEditRow(row) {
      row.isEdit = true
      row.editRow.name = row.name
      row.editRow.state = row.state
      row.editRow.description = row.description
    },
    async btnEditOK(row) {
      if (row.editRow.name.trim() && row.editRow.description.trim()) {
        await updateRole({ ...row.editRow, id: row.id })
        this.$message.success('更新角色成功')
        Object.assign(row, {
          ...row.editRow,
          isEdit: false
        })
      } else {
        this.$message.warning('角色和描述不能为空')
      }
    },
    async confirmDel(id) {
      await delRole(id)
      this.$message.success('删除角色成功')
      if (this.list.length === 1 && this.pageParams.page > 1) {
        this.pageParams.page--
      }
      this.getRoleList()
    },
    async btnPermission(id) {
      const result = await getPermissionList()
      this.permissionData = transListToTreeData(result, 0)
      this.currentRoleId = id
      const { permIds } = await getRoleDetail(id)
      this.permIds = permIds
      this.showPermissionDialog = true
    },
    async btnPermissionOK() {
      await assignPrem({
        id: this.currentRoleId,
        permIds: this.$refs.permTree.getCheckedKeys()
      })
      this.$message.success('角色分配权限成功')
      this.showPermissionDialog = false
    }
  }
}
</script>

<style lang="scss" scoped>
.role-operate {
  padding: 10px;
}
</style>
